Code coverage tests

This page documents the degree to which the PARI/GP source code is tested by our public test suite, distributed with the source distribution in directory src/test/. This is measured by the gcov utility; we then process gcov output using the lcov frond-end.

We test a few variants depending on Configure flags on the pari.math.u-bordeaux.fr machine (x86_64 architecture), and agregate them in the final report:

The target is to exceed 90% coverage for all mathematical modules (given that branches depending on DEBUGLEVEL or DEBUGMEM are not covered). This script is run to produce the results below.

LCOV - code coverage report
Current view: top level - basemath - prime.c (source / functions) Hit Total Coverage
Test: PARI/GP v2.18.1 lcov report (development 30417-3115e90663) Lines: 644 707 91.1 %
Date: 2025-07-28 09:23:22 Functions: 71 77 92.2 %
Legend: Lines: hit not hit

Function Name Sort by function name Hit count Sort by hit count
is_2_prp_101 0
ispseudoprime 0
primecert 0
uis2psp 0
uislucaspsp 0
uprime 0
gprimepi_lower_bound 1
gprimepi_upper_bound 1
gispseudoprime 14
primepi_lower_bound 14
cleanprimetab 21
millerrabin 28
removeprimes 28
rmprime 28
rmprimes 28
_isprimePL 42
primecertexport 49
addp_union 56
check_ecppcert 56
prime_successor 56
primecertisvalid 56
primes_interval_i 79
PL_isvalid 84
primecert0 84
primes_zv 91
randomprime 91
prime_table_closest_p 97
cert_type 98
primes 105
prime_interval 147
randomprime0 154
addp 189
addprimes 189
primes0 231
primes_interval 231
primepi 252
prime_table_find_n 273
prime 280
primes_upto_zv 336
check_ecppcertentry 392
PL_certify 531
init_MR_Jaeschke 557
BLS_test 560
ispsp 990
BPSW_try_PL 1481
pl831 2734
isprimePL 2982
PL_certificate 3045
primecertPL 3066
MR_Jaeschke 7323
primes_interval_zv 14523
PRIMES_interval 14633
uisprime_101 16487
LucasMod 28527
islucaspsp 28527
uisprime_661 29149
Z_isanypower_nosmalldiv 45096
BPSW_psp_nosmalldiv 51826
is2psp 149883
_uispsp 258631
pari_set_primetab 342569
uispsp 360273
primepi_upper_bound 405004
iu_coprime 438130
get_disc 1135464
uislucaspsp_pre 1135472
u_LucasMod_pre 1135723
BPSW_isprime 3950988
BPSW_isprime_small 3971239
uispsp_pre 8578618
_uisprime 8584074
uprimepi 9084647
gisprime 37475093
isprime 38196516
BPSW_psp 48861044
PRIMES_search 56341537
uisprime 75189765

Generated by: LCOV version 1.16